Eat a Diet High in Nutrients: Nutrients in foods support the body's repair, growth, and wellness. Nutrients we all need include vitamins, minerals, carbohydrates, protein, and even a small amount of fat. A deficiency in any of these nutrients lead to our bodies not working at full capacity -- and can even cause illness. Fill Your Plate With Essential Antioxidants Damaging molecules called free radicals are produced in our bodies during normal body functions -- and these free radicals contribute to aging and dysfunction. Antioxidants such as beta-carotene and vitamins C and E combat the effects of free radicals. Antioxidants have been shown to tie up these free radicals and take away their destructive power.

Studies show that the brain is particularly at risk for free radical damage. Although there's no way to stop free radicals completely, we can reduce their destructive effect on the body by eating foods rich in antioxidants as part of a healthy diet, including:

Eat Protein-Rich Foods to Boost Alertness Foods rich in protein, like turkey, tuna, or chicken, are rich in an amino acid called tyrosine. Tyrosine may help boost levels of the brain chemicals dopamine and norepinephrine. This boost helps you feel alert and makes it easier to concentrate. Try to include a protein source in your diet several times a day, especially when you need to clear your mind and boost your energy.